Joel Rosario, Orb

Jockey Joel Rosario and Orb enjoy a mud-soaked victory in the 139th Kentucky Derby on Saturday at Churchill Downs. It was only the seventh time the Derby was run in sloppy conditions.

Jockey Joel Rosario and Orb enjoy a mud-soaked victory in the 139th Kentucky Derby on Saturday at Churchill Downs. It was only the seventh time the Derby was run in sloppy conditions. (Darron Cummings / Associated Press)

Jockey Joel Rosario and Orb enjoy a mud-soaked victory in the 139th Kentucky Derby on Saturday at Churchill Downs. It was only the seventh time the Derby was run in sloppy conditions.